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2 years ago

Is this a function or no??

Mathematics

2 answers:

Mariana [72]2 years ago

5 0

Answer:

No, it is not.

Explanation:

One x value (-3) has more than one corresponding y value (1 and 0). In a proper function, each x value has one and only one corresponding y value.

Nookie1986 [14]2 years ago

5 0

No because you cant have the same number in the X value

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Reptile [31]

Answer:

The real zeros of f(x) are x = 0.3 and x = -3.3.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this problem, we have that:

$f(x) = x^{2} + 3x - 1$

$a = 1, b = 3, c = -1$

$\bigtriangleup = 3^{2} - 4*1*(-1) = 13$

$x_{1} = \frac{-3 + \sqrt{13}}{2*1} = 0.3$

$x_{2} = \frac{-3 - \sqrt{13}}{2*1} = -3.3$

The real zeros of f(x) are x = 0.3 and x = -3.3.

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3 years ago

In a survey of 300 college graduates 53 reported that they entered a profession closely related to their college major. if 9 of

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Answer:

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Step-by-step explanation:

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3 years ago

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Neporo4naja [7]

Answer:

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4 0

2 years ago

Consider the arithmetic sequence 13, 16, 19, 22, 25, ... What is the 60th term in the sequence?

Pavel [41]

Answer:

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Step-by-step explanation:

6 0

3 years ago

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Using the figure below, select the two pairs of alternate interior angles.

algol [13]

Answer:

B :point 2 and point 3

Step-by-step explanation:

The only interior angles are 6, 2, 3, and 7

The angles equal to each other are 6 and 7 or 2 and 3

6 and 7 is not an option so 2 and 3 are the correct answer.

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3 years ago

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